大学线性代数讲义前面有对知识的讲解,后面是习题。便于理解。不想挂科的同学们的必备之物

111

~D= 234 ,¦D"

4916

A.D=(3 2)(4 2)(4 3)=2.

~ .¦n0I ª 2 10···00

21···00 1

0 12···00 .Dn= ············ 000···21 000···12

210 21 11

A.n=2,D2=4 1=3,Dn= 121 =2 =6 2=4.

12 02 012

#(n>3),DnUI I Ðm&

110···00

21···00 0

12···00 3 0 =2Dn 1 Dn 2.Dn=2Dn 1+( 1)

············

000···21

000···12

e¡^VB{y²Dn=n+1¨n=2 ¤á;#n≤k ¤á,¨n=k+1 Dn=2Dn 1 Dn 2=2n (n 1)=2n n+1=n+1,ÏdDn=n+1.

e I ª. µP71,1.1.O

xab0c 56000

0y00d 15600

(1). 01560 (2). 0cz0f

ghkut 00156

0000v 00015

1+x 111 31 12 1 513 4 1 x11 (3). (4). .

1 11+y1 201 1 1 1 53 3 111 y